| Era | Period | Age | Formation | Explanation |
| Cenozoic | Quaternary | Holocene-Pleistocene | Recent sediments, Hauran Sandy gravel. | Alluvial sediments, valley & depression fills, etc. |
| Tertiary p | Late Miocene-Pliocene | Zahra Fn. | Limestone, sandy Limestone. | |
| Middle Miocene | Nefile Fn. | Marl, silty claystone, Limestone. | ||
| Late Miocene | Ghar Fn. | Sandstone & calcareous silty Sandstone. | ||
| Early Oligocene | Shurau/shiekh Alas Fns. | Carbonate rocks. | ||
| Early-Late Eocene | Rattga Fn. | Fossiliferous dolomitic chalky, phosphatic Limestone | ||
| Middle-Late Paleocene | Akashat Fn. | Phosphatic limestone, marly Dolostone. Chalky Fossiliferous Limestone. | ||
| Mesozoic | Cretaceous | Early-Late Maestrichtian | Digma Fn. | Sandy limestone interbedded with silty sandstone. Marl and Dolomite. |
| Late Campanian-Late Maestrichtian | Hartha-Tayarat Fns. | Dolomitic limestone, silty clay Limestone sandy, Marl. | ||
| Cenomanian-Turonian | Rutba-Msad Fns. | Dolomitic Limestone-silty sandstones | ||
| Albian-Cenomanian | Naher Umer-Maudod Fns. | Silt, Sandstone, Marl, dolostone, Limestone | ||
| Jurassic | Bathonian | Muhaywir Fn | Marl, sandstones, carbonate | |
| Lias | Amij-Hussayniyat Fns. | Claystones, sandstones, Iron Ore and dolomite | ||
| Lias | Ubaid Fn. | Dolomite, Gypsious, Marl, Dolomitic Limestone | ||
| Triassic | Rhaetic | Zor Hauran Fn | Marl, marly Limestone, Dolostone, Gypsious Marl | |
| Carnian-Nornian | Mullusi Fn. | Limestone, dolomite limestone, and dolostone. | ||
| Paleozoic | Permo-carboniferous | Early-late Permian | Ga’ra Fn. | Interbedded of clay stones & sandstones |